Meaning of “dementia” in the English Dictionary

british dictionary

"dementia" in American English

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dementianoun [ U ]

us /dɪˈmen·ʃə/

a disease or condition that exists esp. among older people, and that results in the gradual loss of mental abilities, such as the ability to think, reason, and remember things

(Definition of “dementia” from the Cambridge Academic Content Dictionary © Cambridge University Press)